Door-lock switch.



G. WRIGHT L H. P. BALL.

D008. LOCK SWITCH. APPLxoATIoN 11111111111111111 s.

Patented 00u14, 1913.

| r Il Af Wi M4 igi i @Y r!A I- ,Il IF... mm 5 f @nf mil NTTED i STATES PATENT oserei?.

GILBERT WRIGHT, OF SCEENECTAAIDY, ND HENRY PRICE BALL, OF NEW" YORK, N. Y.,

ASSIGNORS, BY MESNE ASSIGNMENTS. 'IO GENERAL ELECTRIC COMPANY, A COR- PORATION OF NEW YORK.

Doonmocx SWITCH.

IAziteuted-ct. 1.4, 191.3.

Application led I sebruary 19, 1908. 1 Serial No. 416,754.

To all whom.#mag/.convenu Be it known that We, GiLERT 'Nl/'RIGHT Y and HENRY P. BALL, citizens of the United Door-Lock Switches,

`States, residing, respectively, 'at Schene tady, county of Schenectady, State of New York, and at New York county of New York, State of New Yorlr,- have invented certain new and-'useful Improvements in isa specification.'

This iniie'ntionf. relates to automatic switches for electric light-ing circuits,` and The intention; especially' intended for hotel room doorsgwitha. 'view .to preventing unnecessary consumption' fof Y' current when the occupant of the roomfomits'to turn joli' the lights before learing it.

" To this e11d`ourin'vention consists'in the combination Vuitlra V.two-button Switch .of any standard make, of two auxiliary pushbuttons preferably in line with .thosein the .Sivitch7 adeifiee for locking the switch when the lights have been -turnedc-n, means for tripping said lockingdevice by hand atwill7 means for automatically tripping it when the door is locked 'fronrthe outside; and means for ope-ning the switch when said locking device is tripped Vin either rmanner.

Modern hotel door locks have tivo independant locking bolts,1one operated only from the inside .of the room'and thev other only from the outsidciof the same. Our' deric'e is combined with the outside bolt'only, leaving the inside boltv'free to be opera-ted both in locking and unlocking the door without ali'ecting the switch. The specific details of .construction of which wc prefer to make use are shownin the accompanying drawing. in which- Figure i is an elevation of a portion of a. door Vand the adjoining wall of the room, showing the lock and the switch and the interniediate tripping device. Eig. a Vertical sectional elevation of the switch. Fig. 3 is a front View.. of the same,

with the face-plate reniored.l .F ig. 4 is a of which thefollowing .and spring 13. in' order Standard make suitable for controlling` the .'llghtln 'sition to 'receiye the face-plate4 of the swil cli.

The box is providedwitli a 1flush-plate .3, to therear 4side of which is secured a bridge 6.` Two holes are' made in the fiushplate and the bridge, preferably in lisievfith the push-buttons 7 `8 ofthe switch.; audin said holes aire located the auxiliary push-outtons 9 10. "Phe latter .isaluays incontact `w'1tli the button 8, and u'hen pushedg-in.v as

shownin Fig.' 2, it operates to turn 'on 15H- lights. jIn one'side of Vthis push-button 1() is a' recess forming a shoulder 1l, and secured' to the bridge is a detent. preferabl) the flatspring `l2, adapted to snap into said vrecess and engagewith said shoulder when the button is pushed in; as shown in Figs.

2, Ltand 5f This locks the switch in thc ciosed'position7 with the lights on.

.lVhenthe detent is disengaged from the button 10, the lights u'iil he :uiton'niticallj: extinguished by a'strong spring 123, mice-nd of whichis secured to the bridge (i while its free end bears upon the dark imsh-button T of the switch, and .constantly tends to push the sante inu'ard.-A .Y l* Y v Two devices are provided for tripping the detentand permitting,` the spring 13 to put out the lights. One of ltht-se devices is the trip-button Qprefe-rably. constructed and arranged as shown, that is to say,. with a shank having' a l'ie\'eled surface lLi standlng adjacent to one edge of the detent spring.

also that; when said button is pushed in tlnl beveled surface will wedge the spring out of the recess in the button 10. thereby releasing it from the shoulder ll. V'lhis iriphurton, therefore` ail'ords provision for extinguishing the lights by hand at. thin will nl' the occupant of the roo'zn. The buttons t and i()are preferal'ily provided with squaiwfd Shanks where they pass. one throupfhv1-hc bridge and the other through hc bridge lo prevent. thi-in from rotating:l and thereby throwing the shoulder 11 and the bevel 14 our. of opvrative relation to the detcnt spring. 'The other ineens for disengaging said dott-uf. spring from the push-button 10 is the tripping-rod l5, whose end lies adjacent to the detent, lneferably between the two auxiliary push-buttons. The rod runs out through a sition.

. 2. The combination -with a two-button hole in the side-of the box :Z and terminates at the bolt. hole iG-in Athe Strikingplate'l' 'of the door lock i8; the box` 2 being let into the` wall or' the room adjacent to the door, as shown in Fig. l. Ve prefer to make the tripping-rod :adjustable in length, preferably by tapping it vinto a sleeve 19, which has a projection' .ZOeXtend-A ingto the bolt hole lkand adjacent to the end of the outside bolt, 9.1.

. '\Vhen the occupant of the room goes out, and shuts and locks the door, the bolt Z1 is shot through the bolt'hole 16 and forces the tripping-rod lengthwise, causing it to push the detent spring oit' the shoulder 11 :ind thereby release the push-button lOland -perniit`the spring 13 to throwl in the darli button and extinguislrthe lights.' vUpon rentering the room, the occupant can turn on the lights again by means of the push button` 10, and when the detent snaps into the locking recess in said button it also ,re stores thetripping-rod to its operative po- So long 21S/the occupant of the room remains in it, he can control the lights by rneans of .the tn'o auxiliary push-buttons, quitb independently of the door lock.

What we claim as new and desire to se- .cure by Letters Patent of the United States,

,1.v The 'combination with a two-button switclnof-,an auxiliary push-buttonin line with one buttono said switch, a detent for locking said auxiliary button when the switch is closed,l a trip-bntton 4for releasing said detent, and independent .tripping means adapted-to be actuated by a door bolt.

switch,` of an auxiliary push-buttonlin linel with one button of said switch and provided' with a recess, a detent spring adapted. to engage Wit-h said recess, a trip-button adapted to disengage said'spring from said recess, and a' tripping-rod having one end adjacent to said detent spring.

, switch,

said plate,

ruary, 1908.

3. The. Y combination with a two-button i Snitch, of an auxiliary push-button in line with one button ot said switch, and providedv with a recess, a detent spring adapted to engage with said recess', a. trip-button having a beveled surface adapted to engage wxthj" said spring and disengage itv from said re-L cess, and a tripping-rod having one end adjacent to said detent spring. j

4. The combination with' fa twobutlton switch, of a box-for containing the same, a flush-plate forff'said box, a bridge secured to said plate, auxilin ry-push-buttons supported insaid plate-and bridge, a detent 'ada ted to lock said .sn-'itch closed, 'a spring ten `ng to open said switch, and a tripping device ca- ADuble of operation by a door bolt.

o. The combination-Mh aftwdbutto'n lush-plate-.for said box, a bridge secured to an auxiliaryA push-button- -sup ported in said plate and bridge. contact;

with 'onel of .the -sxyitcli buttons, a detent'.

and-adapted spring secured to said bridge y to engage with said auxiliary push-button, a spring supported on said bridge and bearing upon the otherswitch button, a trip-button supported in Said plateA and bridge and having a beveled surface adjacent to said dei tent spring, and a tripping-rod y having4 one end adjacent to said detent spring, ander;-

ltending out through the wall of said box.'

of a box forcontaining the same, a 

